Chair seat



FIG. 1 is a perspective view of chair seat looking from the left-side upper direction thereof;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a plan view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a sectional view taken at 8--8 FIG. 6;

FIG. 9 is a sectional view taken at 9--9 of FIG. 6; and,

FIG. 10 is the perspective view of FIG. 1 shown in an illustrative environment.

The broken lines are shown for environmental purposes only and form no part of the claimed design. 

The ornamental design for a chair seat, as shown and described. 